IMO - Ben isn't under-achieving, he's just plateaued. If you want the offense to do more, he does in fact have to "tweak" something, and that includes his gun-slinging, live by the sword, die by the sword attitude. If you want the rest of his career to be Brett Favreish then rock on.

This does appear to be the case right now.

Hopefully Big Ben 'takes another leap'. The Steelers can't succeed with a prima-donna gunslinger under center (plus, I hate Brett Favre and couldn't stomach rooting for a newer version of him!).